Marine heatwave Bulletin Forecasts for 23 August 2025 Re-posted from Mercator Ocean Bulletin

Key takeaways Tropical North Atlantic The marine heatwave in the Gulf of Mexico and south of Cuba persists in extent but decreases in intensity, with moderate and locally strong categories observed. The marine heatwave east of Florida is decreasing in extent but increasing in intensity, with the emergence of strong and locally severe categories.  North… Read More Marine heatwave categories for 23 August, 2025. Global. Credit: Mercator Ocean International.

Developing an Operational Sargassum HAB Monitoring and Forecasting System for the Southeastern U.S. and U.S. Caribbean

REPOSTED FROM NCCOS Science Area(s): Harmful Algal Bloom Detection and Forecasting, Stressor Impacts and Mitigation Region(s) of Study: Atlantic Ocean, Caribbean Sea, Florida, Puerto Rico, U.S. States and Territories, U.S. Virgin Islands, Waterbodies Primary Contact(s): marc.suddleson@noaa.gov This project began in September 2023 and is projected to be completed in August 2028. This project will improve… Read More

Marine heatwave Bulletin Forecasts for 16 August 2025 Re-posted from Mercator Ocean Bulletin

Key takeaways Tropical North Atlantic The marine heatwave in the Gulf of Mexico and south of Cuba persists in extent but decreases in intensity, with moderate and locally strong categories observed. The marine heatwave east of Florida is decreasing in extent but increasing in intensity, with the emergence of strong and locally severe categories.  North… Read More

Marine heatwave forecasts – July 26, 2025 – Re-posted from Mercator Ocean Bulletin

The marine heatwave bulletin provides forecasts and analysis of marine heatwave events across the globe and throughout the year. Used datasets include observations (satellite sea surface temperature maps) and numerical model analyses (assimilating satellite and in situ observations) to derive marine heatwave forecasts for a 10-day period. This week’s forecasts were produced using as a comparison the marine… Read More Marine heatwave intensity categories for 26 July, 2025. Global ocean. Credit: Mercator Ocean International